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Viral meningitis is the most common form of meningitis and is often referred to as aseptic meningitis to indicate the absence of bacterial involvement. It is generally milder than bacterial meningitis, with symptoms including fever, headache, stiff neck, drowsiness, nausea, photophobia, and vomiting. Rarely, more severe manifestations or death may occur. Common causative agents include enteroviruses, particularly coxsackie A and B viruses and echoviruses, all members of the Enterovirus genus...
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Introduction:For diagnosing acute pyelonephritis, a comprehensive patient history is collected to identify symptoms such as dysuria, frequent or urgent urination, flank pain, or costovertebral angle (CVA) tenderness that may suggest a kidney infection.Physical ExaminationDuring the physical examination, CVA tenderness is assessed. This involves gentle percussion over the costovertebral angle, where tenderness often indicates a kidney infection.Diagnostic TestsUrinalysis: Used to identify white...
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Deciphering and Imaging Pathogenesis and Cording of Mycobacterium abscessus in Zebrafish Embryos
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[Pyogenic brain abscesses in adults].

V de Lastours1, B Fantin1

  • 1Service de médecine interne, hôpital Beaujon, Assistance publique-Hôpitaux de Paris, 100, boulevard du Général-Leclerc, 92100 Clichy, France.

La Revue De Medecine Interne
|January 19, 2016
PubMed
Summary
This summary is machine-generated.

Diagnosing pyogenic brain abscesses (BA) is challenging, but diffusion-weighted MRI offers high accuracy. Early CT-guided aspiration before antibiotics is crucial for optimal microbiological diagnosis and patient outcomes.

Keywords:
Abcès cérébrauxAntibiothérapieAntibiotic therapyBrain MRIBrain abscessesIRM cérébraleNeurochirurgieNeurosurgery

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Area of Science:

  • Neurology
  • Infectious Diseases
  • Radiology

Background:

  • Pyogenic brain abscesses (BA) are rare with non-specific clinical and biological signs, complicating diagnosis.
  • Necrotic tumors are the most common differential diagnosis for ring-enhancing lesions on CT scans.

Purpose of the Study:

  • To highlight the diagnostic utility of diffusion-weighted brain MRI in differentiating pyogenic brain abscesses from necrotic tumors.
  • To emphasize the importance of CT-guided aspiration for microbiological diagnosis before antibiotic treatment.
  • To discuss recent epidemiological shifts and remaining uncertainties in BA management.

Main Methods:

  • Utilizing diffusion-weighted brain MRI sequences for enhanced sensitivity and specificity in diagnosing BA.
  • Performing CT-guided aspiration for microbiological analysis prior to antibiotic initiation.
  • Reviewing epidemiological trends and current literature on BA management.

Main Results:

  • Diffusion-weighted MRI significantly improves the differentiation between BA and necrotic tumors.
  • CT-guided aspiration before antibiotics optimizes microbiological yield.
  • Epidemiological changes show an increase in immunocompromised patients and a broader spectrum of causative bacteria.

Conclusions:

  • Diffusion-weighted MRI is a valuable tool for rapid and accurate BA diagnosis.
  • Early microbiological diagnosis via CT-guided aspiration is critical.
  • Optimal antibiotic duration, radiological follow-up, and adjunctive therapies require further investigation.